<template>
  <section>
    <!--工具条-->
    <el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
      <el-form :inline="true" :model="filters" enctype="multipart/form-data">
        <el-form-item>
          <el-input v-model.number="filters.keyword" placeholder="请输正整数（入输入用户id）" oninput="value=value.replace(/[^0-9]/g,'')"></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" v-on:click="search()">查询</el-button>
        </el-form-item>
        <el-upload
            class="upload-demo"
            ref="upload"
            action="http://localhost:8080/userPic/upload"
            :on-preview="handlePreview"
            :on-remove="handleRemove"
            :multiple = "false"
            :limit="1"
            :auto-upload="false"
            :data ={userId:this.userId,submitter:this.submitter}

        >
          用户id：<el-input style="width: 30%;" v-model.number="userId" placeholder="请输正整数（入输入用户id）" auto-complete="off" oninput="value=value.replace(/[^0-9]/g,'')"></el-input>
          上传者：<el-input style="width: 30%;" v-model="submitter" placeholder="请输上传者" auto-complete="off" width="300"></el-input>
          <el-button slot="trigger" size="small" type="primary">选取上传图片</el-button>
          <el-button style="margin-left: 10px;" size="small" type="success" @click="submitUpload">添加</el-button>
          <div slot="tip" class="el-upload__tip">只能上传jpg/png文件，且不超过500kb</div>
        </el-upload>
      </el-form>
    </el-col>

    <!--列表-->
    <el-table :data="userPics" highlight-current-row v-loading="listLoading"
              @selection-change="selsChange" style="width: 100%;">
      <!--就是每行前面的那个 小框框-->
      <el-table-column type="selection" width="55">
      </el-table-column>

      <el-table-column type="index" width="60">
      </el-table-column>
      <el-table-column prop="userId" label="用户id" width="120" >
      </el-table-column>
      <el-table-column label="图片" >
        <template slot-scope="scope">
          <img :src="'http://localhost:8080/profilePhoto/'+scope.row.url" height="20%" width="20%" />
        </template>


      </el-table-column>
      <el-table-column prop="submitter" label="上传用户" width="100" sortable></el-table-column>




      <el-table-column label="操作" width="150">
        <template scope="scope">
          <el-button size="small" @click="handleEdit(scope.$index, scope.row)">编辑</el-button>
          <el-button type="danger" size="small" @click="handleDel(scope.$index, scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!--工具条
     :disabled ： 是否展示 没有选中(数组长度为0)的时候 不能点击
                  选中了(数组长度不为0)的时候 可以点击
    -->
    <el-col :span="24" class="toolbar">
      <el-button type="danger" @click="batchRemove" :disabled="this.sels.length===0">批量删除</el-button>
      <el-pagination layout="prev, pager, next" @current-change="handleCurrentChange"
                    :current-page="currentPage" :page-size="pageSize" :total="total"
                     style="float:right;">
      </el-pagination>
    </el-col>


    <!--编辑界面-->
    <!--
    v-model：在elementUi2.x版本是双向绑定
              elementUi是1.x版本 是控制弹窗是否展示
    :rules="editFormRules" 输入框校验
    ref="editForm" ： 哪个表单引用
    prop="name" ： 输入框使用这个
    -->
    <el-dialog :title="title" :visible.sync="editFormVisible" :close-on-click-modal="false">
      <el-form :model="editForm" label-width="80px"  ref="editForm">
        <el-form-item label="用户id" prop="userId" >
          <el-input v-model.number="editForm.userId" placeholder="请输入正整数（入输入用户id）" auto-complete="off" oninput="value=value.replace(/[^0-9]/g,'')"></el-input>
          <el-input v-model="editForm.submitter" placeholder="请输入上传者"  auto-complete="off" ></el-input>
        </el-form-item>



      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click.native="editFormVisible = false">取消</el-button>
        <el-button type="primary" @click.native="editSubmit" :loading="editLoading">提交</el-button>
      </div>
    </el-dialog>

  </section>
</template>

<script>

//import NProgress from 'nprogress'


export default {
  data() {
    return {
      options: [],
      src:"",
      userId:null,
      submitter:null,
      title:'',
      filters: {
        keyword: ''
      },
      userPics: [],
      total: 0,
      pageSize:5,
      currentPage:1,
      listLoading: false,
      sels: [],//列表选中列

      editFormVisible: false,//编辑界面是否显示
      editLoading: false,

      //编辑界面数据
      editForm: {
        picId:null,
        userId:null,
        url:'',
        submitter:''
      },
    }
  },
  methods: {
    submitUpload() {
      this.$refs.upload.submit();
      this.$router.go(0)

    },
    handleRemove(file, fileList) {
      console.log(file, fileList);
    },
    handlePreview(file) {
      console.log(file);
    },


    search(){
      this.currentPage = 1;
      this.getUerPics();
    },
    handleCurrentChange(val) {
      this.currentPage = val;
      this.getUerPics();
    },
    //获取部门列表
    getUerPics() {
      // para 对象
      let para = {
        pageSize: this.pageSize,
        currentPage:this.currentPage,
        keyword: this.filters.keyword
      };
      // 开启列表忙等
      this.listLoading = true;
      // 我们要发送Axios请求
      this.$http.post("/userPic", para)
          .then(result => {
            // 进到这里面来 肯定是请求成功的
            this.listLoading = false;
            this.userPics = result.data.rows;
            console.log(this.userPics)
            this.total = result.data.total;

          })
          .catch(result => {
            // 报错了的 请求失败
            this.$message({
              message: '网络异常，请稍后重试！',
              type: 'error'
            });
          })
    },
    //删除   row：代表当前行的数据
    handleDel: function (index, row) {
      console.log(row)
      this.$confirm('确认删除该记录吗?', '提示', {
        type: 'warning'
      }).then(() => {
        // 1.后端没有将错误返回到前端 2.请求成功 http请求状态码 200
        this.listLoading = true;
        // 就是我们数据库的id
        this.$http.delete("/userPic/"+row.picId)
          .then(result=>{
            console.log(row)
            // 一定是删除成功
            this.listLoading = false;
            this.$message({
              message: result.data.msg,
              type: result.data.success?'success':'error'
            });
            // 刷新一下列表 是否跳转到第一页 你们自己玩
            this.currentPage = 1;
            this.getUerPics();
          })
          .catch(result=>{
            // http请求不成功或者后端抛异常到前端了
            // 什么时候走catch 1. http请求不同 2.后端将异常抛给前端了
            this.$message({
              message: "网络异常，请稍后重试!",
              type: 'error'
            });
          })
      }).catch(() => {
        // 取消走这里

      });
    },
    //显示编辑界面
    handleEdit: function (index, row) {
      this.editFormVisible = true;
      this.title = "编辑"
      this.editForm = Object.assign({}, row);
    },

    //编辑
    editSubmit: function () {
      this.$refs.editForm.validate((valid) => {
        if (valid) {
          this.$confirm('确认提交吗？', '提示', {}).then(() => {
            this.editLoading = true;
            // 将editForm表单的数据 拷贝到 一个对象中 为什么要这么做？
            let para = Object.assign({}, this.editForm);
            // 这块 在新增的时候 para.parentId 是数组传过来的 但是其实我们只要数组的最后一个
            if (para.parentId){
              // 如果存在parentId
              para.parentId = para.parentId[para.parentId.length - 1];
            }

            // 发送请求 新增/修改
            this.$http.put("/userPic",para)
              .then(result=>{
                this.editLoading = false;
                this.editFormVisible = false;
                this.$message({
                  message: result.data.msg,
                  type: 'success'
                });
                this.currentPage = 1
                this.getUerPics();
              })
              .catch(result=>{
                this.$message({
                  message: "网络异常，请稍后重试 ！",
                  type: 'error'
                });
              })
          });
        }
      });
    },

    /*
    * 监听是否有选择 函数的参数 选中一整行数据的数组
    * */
    selsChange: function (sels) {
      this.sels = sels;
    },
    //批量删除
    batchRemove: function () {
      // 类似于stream流 将数组中的id 封装成数组
      var ids = this.sels.map(item => item.picId);
      this.$confirm('确认删除选中记录吗？', '提示', {
        type: 'warning'
      }).then(() => {
        this.listLoading = true;
        // 发送请求
        this.$http.patch("/userPic",ids)
          .then(result=>{
            this.listLoading = false;
            this.$message({
              message: result.data.msg,
              type: 'success'
            });
            // 刷新一下列表 是否跳转到第一页 你们自己玩
            this.currentPage = 1;
            this.getUerPics();
          })
          .catch(result=>{
            this.$message({
              message: "网络异常，请稍后重试！",
              type: 'error'
            });
          })
      }).catch(() => {

      });
    }
  },
  mounted() {
    this.getUerPics();
  }
}

</script>

<style scoped>

</style>